Angle grinder with heat dissipation function

Abstract

The utility model relates to the technical field of angle grinders, in particular to an angle grinder with a heat dissipation function, which comprises a holding part, a driving shell is fixedly connected to the front surface of the holding part, a driving motor is arranged in the driving shell, a protective cylinder is mounted at the lower end of the driving motor, and a heat dissipation device is mounted at the lower end of the protective cylinder. And the output end of the driving motor is installed in the protective cylinder, a polishing wheel is installed at the output end of the driving motor, and a protective shell is arranged on the outer surface of the protective cylinder. Polishing operation is carried out through the polishing wheel, the overall polishing effect is good, meanwhile, during heat dissipation, air supply is started through the air inlet holes, then air can be guided through the design of the guide plate and the guide block, the overall guide effect is good, the air can be overall blown to the outer surface of the driving motor, and therefore the overall heat dissipation effect is good, and the service life of the driving motor is prolonged. And then through the design of the grooves and the ventilation holes, air can rapidly circulate, and the overall circulation effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of angle grinders, in particular to an angle grinder with a heat dissipation function. Background Technique

[0002] An angle grinder refers to an electric tool used for grinding weld beads, removing welding defects, cleaning weld roots, etc. Angle grinders have the advantages of high rotational speed, fast defect removal speed, and beautiful and clean welded seams. A grinder is a manual or electric tool used for grinding the surface of metals. The polishing machine is specifically used for surface treatment of metal products such as steel, aluminum, and copper and pipes. Dozens of original factory accessories meet different needs, and various snowflake patterns, wire drawing patterns, wave patterns, matte surfaces, mirror surfaces, etc. with different precisions can be easily manufactured. Deep scratches and minor scratches can be quickly repaired, and quick grinding and polishing can be carried out.

[0003] In this regard, Chinese Patent Application No.: CN221065752U discloses an angle grinder with good heat dissipation, including a driving device, a holding part fixed on one side of the driving device, a grinding wheel rotatably connected to the bottom of the driving device, and a protective housing fixed to the bottom of the driving device. It also includes: a plurality of ventilation holes provided on the surface of the driving device, a heat dissipation cover communicated with the outside of the holding part, a through groove opened on one side of the heat dissipation cover, and a mounting frame fixed inside the heat dissipation cover; in the utility model, a duct is formed by the cooperation of a heat dissipation fan and the ventilation holes at the rear end of the ventilation part, and active heat dissipation is adopted to discharge heat through the duct. When processing, atomized cooling liquid can be sprayed onto the grinding wheel through a push plate and a connecting pipe, greatly improving the heat dissipation performance of the device, and solving the problem that the current angle grinder has relatively poor heat dissipation effect, resulting in the heat generated by the motor being unable to be quickly dissipated to the outside of the machine body, and the natural cooling and temperature reduction speed is relatively slow.

[0004] However, in actual use, the driving device only discharges heat through the ventilation holes. At this time, the wind blown by the heat dissipation fan towards the driving device cannot be guided, so that the heat dissipation fan cannot stably blow to the outer surface of the driving motor. At the same time, the ventilation speed is slow, and the heat dissipation fan is far away from the driving device, unable to achieve a good heat dissipation effect. Therefore, improving and perfecting the above problems has become an urgent problem to be solved at present. Content of the Utility Model

[0005] The purpose of the utility model is to provide an angle grinder with a heat dissipation function, so as to solve the problem that the driving device only discharges heat through the ventilation holes as mentioned in the above background technique. At this time, the wind blown by the heat dissipation fan towards the driving device cannot be guided, so that the heat dissipation fan cannot stably blow to the outer surface of the driving motor. At the same time, the ventilation speed is slow, and the heat dissipation fan is far away from the driving device, unable to achieve a good heat dissipation effect.

[0006] To achieve the above object, the present utility model provides the following technical solutions: An angle grinder with a heat dissipation function, including a holding part, a driving housing is fixedly connected to the front surface of the holding part, a driving motor is arranged inside the driving housing, a protection cylinder is installed at the lower end of the driving motor, the output end of the driving motor is installed inside the protection cylinder, a grinding wheel is installed at the output end of the driving motor, and a protective housing is arranged on the outer surface of the protection cylinder.

[0007] Preferably, a top block is installed on the top surface of the driving housing, and a groove is opened on the top surface of the top block.

[0008] Preferably, an air inlet hole is installed on the back surface of the driving housing, guide plates are fixedly connected to both sides of the inner wall of the driving housing, and guide blocks are fixedly connected to the front surfaces of the guide plates.

[0009] Preferably, a ventilation hole is opened on the front surface of the driving housing, and an installation groove is opened on the right side of the holding part.

[0010] Preferably, an installation block is installed inside the installation groove, a filter screen is arranged inside the installation block, and a fixing column is installed on the left side surface of the installation block.

[0011] Preferably, a heat dissipation frame is installed at one end of the fixing column away from the installation block, a heat dissipation fan is installed inside the heat dissipation frame, and an inclined plate is installed on the left side surface of the heat dissipation frame.

[0012] Preferably, an atomizing nozzle frame is installed on the top surface of the protective housing, a connecting hose is arranged on the top surface of the atomizing nozzle frame, a water storage tank is arranged at one end of the connecting hose away from the atomizing nozzle frame, and the water storage tank is installed on the lower surface of the holding part.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. For the angle grinder with a heat dissipation function, through the arrangement of the holding part, driving housing, driving motor, protection cylinder, protective housing, grinding wheel, top block, groove, air inlet hole, guide plate, guide block and ventilation hole, when in use, first hold the holding part, then start the driving motor, drive the grinding wheel to rotate through the driving motor, and then perform grinding operation through the grinding wheel. The overall grinding effect is good. At the same time, when dissipating heat, air is sent in through the air inlet hole, and then through the design of the guide plate and guide block, the air can be guided. The overall guiding effect is good, so that the air can blow to the outer surface of the driving motor as a whole, and thus the overall heat dissipation effect is good. Subsequently, through the design of the groove and ventilation hole, the air can flow quickly, and the overall flow effect is good, reflecting the practicability of the design.

[0015] 2. The angle grinder with heat dissipation function, through the installation grooves, installation blocks, filter screens, fixing columns, heat dissipation frames, heat dissipation fans, inclined plates, atomizing nozzle frames, connecting hoses and water storage tanks set, when in use, when installing the heat dissipation frame, first connect the fixing column with the heat dissipation frame. When dissipating heat, start the heat dissipation fan to suck the outside air into the inside of the holding part. Then the air will enter the inside of the holding part through the guidance of the inclined plate. At the same time, when sucking air, the outside dust is blocked by the filter screen. At the same time, water is extracted from the outside into the water storage tank through the connecting hose, and then sprayed onto the surface of the grinding wheel through the atomizing nozzle frame. The water will evaporate when encountering high temperature, thus taking away heat for cooling, reflecting the functionality of the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the structure of the present utility model;

[0017] Figure 2 is a split schematic diagram of the holding part and the installation block structures of the present utility model;

[0018] Figure 3 is a split schematic diagram of the driving housing and the top block structures of the present utility model;

[0019] Figure 4 is a three-dimensional schematic diagram of the protective housing and the atomizing nozzle frame structures of the present utility model.

[0020] In the figure: 1. Holding part; 2. Driving housing; 3. Driving motor; 4. Protection cylinder; 5. Protective housing; 6. Grinding wheel; 7. Top block; 8. Groove; 9. Air inlet hole; 10. Guide plate; 11. Guide block; 12. Ventilation hole; 13. Installation groove; 14. Installation block; 15. Filter screen; 16. Fixing column; 17. Heat dissipation frame; 18. Heat dissipation fan; 19. Inclined plate; 20. Atomizing nozzle frame; 21. Connecting hose; 22. Water storage tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 - 4 , an embodiment provided by the present utility model:

[0023] An angle grinder with a heat dissipation function. The drive motor 3, protective housing 5, cooling fan 18, and atomizing nozzle holder 20 used in this application are all products that can be directly purchased on the market. Their principles and connection methods are all well-known prior arts to those skilled in the art, so they will not be elaborated here. It includes a grip portion 1. A drive housing 2 is fixedly connected to the front surface of the grip portion 1. A drive motor 3 is arranged inside the drive housing 2. A protective cylinder 4 is installed at the lower end of the drive motor 3. The output end of the drive motor 3 is installed inside the protective cylinder 4. A grinding wheel 6 is installed at the output end of the drive motor 3. A protective housing 5 is arranged on the outer surface of the protective cylinder 4. A top block 7 is installed on the top surface of the drive housing 2. A groove 8 is formed on the top surface of the top block 7. An air inlet hole 9 is installed on the back surface of the drive housing 2. Guide plates 10 are fixedly connected to both sides of the inner wall of the drive housing 2. Guide blocks 11 are fixedly connected to the front surface of the guide plates 10. A ventilation hole 12 is formed on the front surface of the drive housing 2. An installation groove 13 is formed on the right side of the grip portion 1. An installation block 14 is installed inside the installation groove 13. A filter screen 15 is arranged inside the installation block 14. A fixing column 16 is installed on the left surface of the installation block 14. A heat dissipation frame 17 is installed at the end of the fixing column 16 away from the installation block 14. A cooling fan 18 is installed inside the heat dissipation frame 17. An inclined plate 19 is installed on the left surface of the heat dissipation frame 17. An atomizing nozzle holder 20 is installed on the top surface of the protective housing 5. A connecting hose 21 is arranged on the top surface of the atomizing nozzle holder 20. The end of the connecting hose 21 away from the atomizing nozzle holder 20 is provided with a water storage tank 22. The water storage tank 22 is installed on the lower surface of the grip portion 1. First, hold the grip portion 1, and then start the drive motor 3. The drive motor 3 drives the grinding wheel 6 to rotate, and then the grinding operation is carried out through the grinding wheel 6. The overall grinding effect is good. At the same time, when dissipating heat, air is sent in through the air inlet hole 9, and then the air can be guided through the design of the guide plates 10 and guide blocks 11. The overall guiding effect is good, so that the air can blow to the outer surface of the drive motor 3 as a whole, and thus the overall heat dissipation effect is good. Subsequently, through the design of the groove 8 and the ventilation hole 12, the air can flow quickly. The overall flow effect is good. When installing the heat dissipation frame 17, first connect the fixing column 16 with the heat dissipation frame 17. When dissipating heat, start the cooling fan 18 to suck the outside air into the inside of the grip portion 1. Then the air will enter the inside of the grip portion 1 through the guidance of the inclined plate 19. At the same time, when sucking air, the outside dust is blocked by the filter screen 15. At the same time, water is extracted from the water storage tank 22 through the connecting hose 21, and then sprayed onto the surface of the grinding wheel 6 through the atomizing nozzle holder 20. The water will evaporate when encountering high temperature, thereby taking away heat for cooling.

[0024] Working principle: When the staff uses this device, first connect the external power supply to this device to provide power support for this device. First, hold the holding part 1, then start the driving motor 3, drive the grinding wheel 6 to rotate through the driving motor 3, and then perform grinding operations through the grinding wheel 6. The overall grinding effect is good. At the same time, when dissipating heat, start sending air through the air inlet hole 9, and then the design of the guiding plate 10 and the guiding block 11 can guide the air. The overall guiding effect is good, so that the air can blow to the outer surface of the driving motor 3 as a whole, and thus the overall heat dissipation effect is good. Subsequently, the design of the groove 8 and the ventilation hole 12 can make the air flow quickly. When installing the heat dissipation frame 17, first connect the fixed column 16 to the heat dissipation frame 17. When dissipating heat, start the heat dissipation fan 18 to suck the external air into the inside of the holding part 1. Subsequently, the air will enter the inside of the holding part 1 through the guidance of the inclined plate 19. At the same time, when sucking air, block the external dust through the filter net 15. At the same time, draw water into the inside of the water storage tank 22 through the connecting hose 21, and then spray it onto the surface of the grinding wheel 6 through the atomizing nozzle holder 20. The water will evaporate when encountering high temperature, thereby taking away heat for cooling. The above is all the working principles of this utility model.

[0025] The above is only the preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model; any ordinary technician in the industry can smoothly implement the present utility model according to the instructions in the attached drawings and the above description; however, any slight changes, modifications and equivalent changes made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are all equivalent embodiments of the present utility model; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An angle grinder with a heat dissipation function, comprising a holding part (1), a driving housing (2) is fixedly connected to the front surface of the holding part (1), and a driving motor (3) is arranged inside the driving housing (2), characterized in that: A protective cylinder (4) is installed at the lower end of the drive motor (3). The output end of the drive motor (3) is installed inside the protective cylinder (4). A grinding wheel (6) is installed at the output end of the drive motor (3). A protective housing (5) is arranged on the outer surface of the protective cylinder (4).

2. The angle grinder with heat dissipation function according to claim 1, characterized in that: A top block (7) is installed on the top surface of the drive housing (2). A groove (8) is formed on the top surface of the top block (7).

3. The angle grinder with heat dissipation function according to claim 1, characterized in that: An air inlet hole (9) is installed on the back surface of the drive housing (2). Guide plates (10) are fixedly connected to both sides of the inner wall of the drive housing (2). Guide blocks (11) are fixedly connected to the front surface of the guide plates (10).

4. A angle grinder with heat dissipation function according to claim 1, characterized in that: A ventilation hole (12) is formed on the front surface of the drive housing (2). An installation groove (13) is formed on the right side of the holding part (1).

5. The angle grinder with a heat dissipation function according to claim 4, wherein: An installation block (14) is installed inside the installation groove (13). A filter screen (15) is arranged inside the installation block (14). A fixing column (16) is installed on the left side surface of the installation block (14).

6. The angle grinder with a heat dissipation function according to claim 5, characterized in that: One end of the fixing column (16) far from the installation block (14) is installed with a heat dissipation frame (17). A heat dissipation fan (18) is installed inside the heat dissipation frame (17). An inclined plate (19) is installed on the left side surface of the heat dissipation frame (17).

7. A angle grinder with heat dissipation function according to claim 1, characterized in that: An atomizing nozzle frame (20) is installed on the top surface of the protective housing (5). A connecting hose (21) is arranged on the top surface of the atomizing nozzle frame (20). One end of the connecting hose (21) far from the atomizing nozzle frame (20) is provided with a water storage tank (22). The water storage tank (22) is installed on the lower surface of the holding part (1).

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